# US 2021/0274774 A1 · Control method for agricultural mechanical device and agricultural mechanical device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0274774 A1 - Document ID: US20210274774A1 - Status: Published application - Kind: A1 - Application number: 17/327,383 - Filed: 2021-05-21 - Published: 2021-09-09 - Earliest claimed: 2018-11-23 - Assignees: Sz Dji Technology Co., Ltd. - Applicants: Sz Dji Technology Co., Ltd. - Inventors: Guoxiu PAN; Zijing CHANG; Guang YAN - Web page: https://patentgrep.com/patent/US20210274774A1 ## CPC - A01M 7/0089: {Regulating or controlling systems (the delivery being related to the movement of a vehicle B05B9/06)} - A01M 7/00: Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass - B64D 1/18: by spraying, e.g. insecticides - B64U 30/20: Rotors; Rotor supports - B64U 2101/40: for agriculture or forestry operations - B64U 2101/45: for releasing liquids or powders in-flight, e.g. crop-dusting - B64U 2201/20: Remote controls - A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR ## Abstract A control method includes obtaining a linear speed of one operation member of a plurality of operation members of an agricultural mechanical device when the agricultural mechanical device is making a curvilinear movement, determining an operation rate of the one operation member according to the linear speed of the one operation member, and controlling the one operation member to perform an operation according to the operation rate of the one operation member. The plurality of operation members are located at different positions in a direction perpendicular to a moving direction of the agricultural mechanical device. ## Claims ### Claim 1 A control method comprising: obtaining a linear speed of one operation member of a plurality of operation members of an agricultural mechanical device when the agricultural mechanical device is making a curvilinear movement, the plurality of operation members being located at different positions in a direction perpendicular to a moving direction of the agricultural mechanical device; determining an operation rate of the one operation member according to the linear speed of the one operation member; and controlling the one operation member to perform an operation according to the operation rate of the one operation member. ### Claim 2 (depends on 1) The method of claim 1, wherein obtaining the linear speed of the one operation member when the agricultural mechanical device is making a curvilinear movement includes: obtaining the linear speed of the one operation member according to a preset operation route and current position information of the agricultural mechanical device. ### Claim 3 (depends on 2) The method of claim 2, wherein obtaining the linear speed of the one operation member according to the preset operation route and the current position information of the agricultural mechanical device includes: determining a turning radius of the agricultural mechanical device according to the preset operation route and the current position information of the agricultural mechanical device; and obtaining the linear speed of the one operation member according to the turning radius and a current moving speed of the agricultural mechanical device, and a distance between the one operation member and a central axis of the agricultural mechanical device. ### Claim 4 (depends on 3) The method of claim 3, wherein obtaining the linear speed of the one operation member according to the turning radius and the current moving speed of the agricultural mechanical device, and the distance between the one operation member and the central axis of the agricultural mechanical device includes: determining an angular speed of the agricultural mechanical device according to the turning radius and the current moving speed of the agricultural mechanical device; determining a turning radius of the one operation member according to the turning radius of the agricultural mechanical device and the distance between the one operation member and the central axis of the agricultural mechanical device; and obtaining the linear speed of the one operation member according to the turning radius of the one operation member and the angular speed of the agricultural mechanical device. ### Claim 5 (depends on 1) The method of claim 1, wherein obtaining the linear speed of the one operation member when the agricultural mechanical device is making a curvilinear movement includes: obtaining attitude information of the agricultural mechanical device; and obtaining the linear speed of the one operation member according to the attitude information of the agricultural mechanical device. ### Claim 6 (depends on 5) The method of claim 5, wherein obtaining the linear speed of the one operation member according to the attitude information includes: determining an angular speed and a turning radius of the agricultural mechanical device; and obtaining the linear speed of the one operation member according to the angular speed and the turning radius of the agricultural mechanical device, and a distance between the one operation member and a central axis of the agricultural mechanical device. ### Claim 7 (depends on 1) The method of claim 1, wherein determining the operation rate of the one operation member according to the linear speed of the one operation member includes: determining the operation rate of the one operation member according to a preset corresponding relationship between the linear speed and the operation rate. ### Claim 8 (depends on 1) The method of claim 1, wherein the operation rate of the one operation member is positively related to the linear speed of the one operation member. ### Claim 9 (depends on 1) The method of claim 1, wherein determining the operation rate of the one operation member according to the linear speed of the one operation member includes: determining a linear speed ratio among the plurality of operation members according to a linear speed of each of the plurality of operation members; and determining the operation rate of the one operation member according to the linear speed ratio. ### Claim 10 (depends on 9) The method of claim 9, wherein determining the operation rate of the one operation member according to the linear speed ratio includes: determining the operation rate of the one operation member according to the linear speed ratio and a total operation rate of the agricultural mechanical device. ### Claim 11 (depends on 1) The method of claim 1, wherein each of the plurality of operation members includes at least one of a nozzle or a distribution outlet. ### Claim 12 (depends on 11) The method of claim 11, wherein: the plurality of operation members include a plurality of nozzles; determining the operation rate of the one operation member according to the linear speed of the one operation member includes: determining a spraying rate of one nozzle of the plurality of nozzles according to the linear speed of the one nozzle; and controlling the one operation member to perform the operation according to the operation rate of the one operation member includes: controlling the one nozzle to perform the operation according to the spraying rate of the one nozzle. ### Claim 13 (depends on 12) The method of claim 12, wherein controlling the one nozzle to perform the operation according to the spraying rate of the one nozzle includes performing at least one of: adjusting a pump pressure corresponding to the one nozzle according to the spraying rate of the one nozzle; or adjusting a pump speed corresponding to the one nozzle according to the spraying rate of the one nozzle. ### Claim 14 (depends on 11) The method of claim 11, wherein: the plurality of operation members include a plurality of distribution outlets; determining the operation rate of the one operation member according to the linear speed of the one operation member includes: determining a distribution rate of one distribution outlet of the plurality of distribution outlets according to the linear speed of the one distribution outlet; and controlling the one operation member to perform the operation according to the operation rate of the one operation member includes: controlling the one distribution outlet to perform the operation according to the distribution rate of the one distribution outlet. ### Claim 15 (depends on 14) The method of claim 14, wherein controlling the one distribution outlet to perform the operation according to the distribution rate of each of the one distribution outlet includes performing at least one of: adjusting a size of the one distribution outlet according to the distribution rate of the one distribution outlet; or adjusting an opening angle of the one distribution outlet according to the distribution rate of the one distribution outlet. ### Claim 16 A control method comprising: obtaining speed information of the agricultural mechanical device making a curvilinear movement; determining operation rates of a plurality of operation members of the agricultural mechanical device according to the speed information, the plurality of operation members being located at different positions in a direction perpendicular to a moving direction of the agricultural mechanical device; and controlling the plurality of operation members to perform operations at the operation rates of the plurality of operation members. ### Claim 17 (depends on 16) The method of claim 16, wherein the speed information includes at least one of an angular speed or a linear speed. ### Claim 18 (depends on 16) The method of claim 16, wherein the speed information is measured by a motion sensor mounted at the agricultural mechanical device. ### Claim 19 (depends on 18) The method of claim 18, wherein the motion sensor includes at least one of an inertial measurement unit (IMU), an angular speed sensor, or a linear speed sensor. ### Claim 20 (depends on 16) The method of claim 16, wherein the operation rates of the plurality of operation members are different from each other when the agricultural mechanical device is making the curvilinear movement.